亚急性瘤胃酸中毒对奶牛胃肠道健康影响的研究进展  

Research Progress on Effects of Subacute Ruminal Acidosis on Gastrointestinal Health of Dairy Cows

作　　者：董春晓 戴东文 徐晓锋[1] 李胜利 DONG Chunxiao;DAI Dongwen;XU Xiaofeng;LI Shengli(College of Animal Science and Technology,Ningxia University,Yinchuan 750021,China;Beijing Engineering Technology Research Center of Raw Milk Quality and Control,State Key Laboratory of Animal Nutrition,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China)

机构地区：[1]宁夏大学动物科技学院,银川750021 [2]中国农业大学动物科学技术学院,动物营养学国家重点实验室,北京市生鲜乳质量安全工程技术研究中心,北京100193

出　　处：《动物营养学报》2023年第8期4767-4776,共10页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：财政部和农业农村部-国家现代农业产业技术体系资助(CARS36);中国工程院咨询研究项目(2021NXZD1)。

摘　　要：现代集约化养殖中为满足高产奶牛产奶的需求,通常饲喂大量高精料饲粮。然而,这些高精料饲粮的快速发酵会降低瘤胃pH,诱发亚急性瘤胃酸中毒(SARA)和肠道炎症,并会对胃肠道中微生物的分类组成和种群功能产生负面影响,进而对奶牛的生产、健康和福利产生负面影响。本文主要从SARA对奶牛胃肠道内环境和上皮细胞的影响进行介绍,详细阐述了SARA状态下奶牛瘤胃和后肠发酵模式、胃肠道微生物区系和上皮细胞屏障功能的变化,旨在为更好指导奶牛饲养提供理论依据。In modern intensive farming,highly concentrated diets are often used to achieve the requirement for milk production in high-yield dairy cows.However,the rapid fermentation of these highly concentrated diets can lead to a decrease in rumen pH,resulting in subacute ruminal acidosis(SARA)and intestinal inflammation.This negatively affects the composition and function of microorganisms in the gastrointestinal tract,and ultimately negatively affects production,health and welfare in dairy cows.The main focus of this paper is to assess the impact of SARA on the environment and epithelium in the gastrointestinal tract of dairy cows,including the rumen and hindgut fermentation patterns,the composition of gastrointestinal microflora and epithelium barrier functions of dairy cows under SARA.This paper aims to establish a theoretical foundation for enhancing dairy feeding strategies.

关 键 词：亚急性瘤胃酸中毒 奶牛 发酵参数 胃肠道微生物 上皮细胞 

分 类 号：S823[农业科学—畜牧学]